Kavlico P528 User manual

Potsdamer Str. 14, 32423 Minden, Germany
Tel: [phone] - Fax: [phone]
Email: [email protected]
www.kavlico.com
235 E. Main St., Suite 102A, Northville, MI 48167, USA
Tel: [phone] - Fax: [phone]
Email: [email protected]
Installation Guide
P528 OEM Refrigeration
Pressure Sensor
1. General Information:
A failure resulting in injury or damage may be caused by excessive overpressure, excessive vibration or
pressure pulsation, excessive instrument temperature, corrosion of the pressure containing parts, or other
misuse. Should you have any questions prior to installation, contact Kavlico.
2. Overpressure:
Caution – DO NOT exceed the pressure overload rating of the P528. Failure to comply may result in
irreversible electrical and/or mechanical failure to the pressure measuring and containing elements of the
P528.
Both static and dynamic overloads must be considered, especially if the P528 is going to be installed in a
hydraulic system application.
Hydraulic pressure fluctuations can result in very high and very fast peak pressures (i.e. water hammer
effect).
To avoid damaging liquid surges, fluid lines should remain full (if possible), pumps should be brought up to
power slowly, and valves should be opened slowly. To avoid damage from both fluid hammer and surges a
surge chamber should be installed.
If system pressure pulses are anticipated, select a P528 sensor with a pressure rating high enough to allow
continuous operation at the highest expected pressure spikes.
3. Freezing:
DO NOT allow freezing of process media in the pressure port of the P528. The P528 should be drained
(mount in a vertical position with electrical termination facing upward) to prevent possible overpressure
damage from frozen media.
4. Use in Life Support Devices:
The P528 is not recommended for use as a critical component in a life support device or system without the
express written approval of Kavlico.
WARNING
Read before installation of P528 Pressure Sensor
DO NOT use the P528 without reading the installation
guide in its entirety. Failure to do so may result in death or
serious injury.

Potsdamer Str. 14, 32423 Minden, Germany
Tel: [phone] - Fax: [phone]
Email: [email protected]
www.kavlico.com
235 E. Main St., Suite 102A, Northville, MI 48167, USA
Tel: [phone] - Fax: [phone]
Email: [email protected]
Environmental – The P528 can be stored at -40ºC to +125ºC (-40ºF to 257ºF), and used within the
temperature limits of -15ºC to +125ºC (5ºF to 257ºF) - Seal Dependent.
Mounting – The P528 does not require any special mounting hardware and can be mounted in any
orientation with negligible mounting position error effect. The P528 can withstand substantial vibration
without damage or significant output effect; however, it should always be a reasonable practice to
mount the P528 where there is minimum vibration. For sensors with an NPT type pressure fitting, apply
sealing tape or equivalent sealant to the threads prior to installation.
When installing or removing the P528, apply a wrench to the hex wrench flats which are located above
the pressure fitting. DO NOT under any circumstances tighten by using a pipe wrench on the housing
as this can cause significant damage to the P528. A wrench can only be used on the wrench flats of
the hex. Do Not use a socket wrench as this can cause damage to the connector.
A.
B.
Description:
The Kavlico P528 Pressure Sensor is a high performance instrument that is intended for use in industrial
applications where the process media to be measured is compatible with 304 stainless steel or brass.
Mechanical Installation:
A.
B.
Electro-Magnetic Interference:
The electronic circuitry of the P528 has been designed to minimize the effect of electromagnetic and radio
frequency interference (RFI/EMI). To minimize susceptibility to noise, avoid running the termination wiring in
a conduit that contains high current AC power cables.
Where possible, also avoid running the termination wiring near inductive equipment.
Field Adjustments:
The P528 has been precisely calibrated and temperature compensated at the Kavlico factory to ensure
long and stable performance. The P528 can not be adjusted in the field.
Electrical Installation:
Page 4 of the installation guide provides power supply requirements and the appropriate wiring instructions
based upon the specific output signal and electrical termination features of the transmitter being installed.
Life support devices or systems are those which are (a) intended for surgical implant into the body,
or (b) support to sustain life, and whose failure to perform, when properly used in accordance with
the instructions for use provided in the product labeling, can be reasonably expected to result in a
significant injury to the user.
A critical component is any component of a life support device or system whose failure to perform can
be reasonably expected to cause the failure of the life support device or system, or to affect its safety
or effectiveness.
5. Use in Life Support Devices (cont):

Potsdamer Str. 14, 32423 Minden, Germany
Tel: [phone] - Fax: [phone]
Email: [email protected]
www.kavlico.com
235 E. Main St., Suite 102A, Northville, MI 48167, USA
Tel: [phone] - Fax: [phone]
Email: [email protected]
Bench Test:
For incoming inspection or failure evaluation, connect the P528 to a dc voltage supply (off).
The voltage supply should be set to 5 volts.
Connect the output leads to a volt meter. With no pressure on the unit, turn on the power supply and read
the output signal on the volt meter.
The reading should correspond to the specification indicated for null offset. If not, check the connections,
wire color code and the setting of the power supply.
Electrical Installation and Wiring Guide
Safety Considerations:
Prior to installation and start-up of the P528 Pressure Sensor, you should verify that you have selected the
appropriate scale range, and that the P500 meets your desired performance and specific measurement
conditions.
You MUST observe the relevant local/national regulations and observe the applicable standards and
directives for special applications (e.g. with dangerous media such as acetylene, flammable gasses or
liquids and toxic gases or liquids and with refrigeration plants or compressors). Should you NOT observe
the appropriate regulations, serious injuries and/or damage can occur!
Open pressure connections only after the system is without pressure!
DO NOT use the P528 outside of the overload threshold. Make sure that the device is used only within the
overload threshold limit at all times.
Observe the ambient working conditions of the P528.
Only use the P528 with compatible liquids and gases and avoid installing the sensor in an environment
with mechanical hazards.
Only use the P528 in accordance with the installation guidelines as described within this document:
Installation Guide – P528 OEM Refrigeration Pressure Sensor

Potsdamer Str. 14, 32423 Minden, Germany
Tel: [phone] - Fax: [phone]
Email: [email protected]
www.kavlico.com
235 E. Main St., Suite 102A, Northville, MI 48167, USA
Tel: [phone] - Fax: [phone]
Email: [email protected]
09/2013 © 2013 Kavlico. All rights reserved.
DO NOT interfere with or change the P528 pressure sensor in any way other than may be described within
this installation guide.
Should the P528 become damaged or unsafe for operation, remove it from service and mark it to prevent
the sensor from being reinstalled accidentally.
Should you be required to remove the P528 from service, take all necessary precautions with regard to the
remaining process media that may still reside within the pressure port as it may be hazardous or toxic.
Repairs to the P528 should be made by Kavlico only. To obtain a Return Material Authorization Number
(RMA) call: 619-710-2000
Before removing the connector from the P528, make sure to open circuit.
Additional information about the P528 in respect to features and specifications can be found in the
P528Data Sheet which can be found on the Kavlico website at: www.kavlico.com/kavlico-pressure in
the Download section.
Safety Considerations (cont):